WO2000006921A1 - Seal for a hydraulically actuated release system - Google Patents
Seal for a hydraulically actuated release system Download PDFInfo
- Publication number
- WO2000006921A1 WO2000006921A1 PCT/EP1999/004113 EP9904113W WO0006921A1 WO 2000006921 A1 WO2000006921 A1 WO 2000006921A1 EP 9904113 W EP9904113 W EP 9904113W WO 0006921 A1 WO0006921 A1 WO 0006921A1
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- WIPO (PCT)
- Prior art keywords
- piston
- release system
- retaining ring
- seal
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Definitions
- the invention relates to a hydraulically actuated release system, in particular for a shift clutch of a motor vehicle, with the features of the preamble of patent claim 1.
- DE 196 35 101 A1 describes a release bearing with hydraulic actuation for a diaphragm spring clutch for motor vehicles, in which a grooved ring seal is attached to the piston via a connecting part.
- the connecting part is anchored or embedded in the groove ring seal, an axially extending leg of the connecting part engaging in the outer peripheral surface of the piston.
- the invention has for its object to provide a hydraulically operated release system in which jamming or tilting of the seal attached to the piston is prevented.
- the seal for locking on the piston is received in a positionally stable and operationally reliable manner by means of a common positive locking of a retaining ring fastened to the piston and an end section of the piston a correspondingly shaped end section of the piston is locked
- a molded part is formed by the retaining ring attached to the piston in connection with the correspondingly shaped end section of the piston, which cooperates with the correspondingly shaped fastening section of the seal for fastening the seal to the piston
- a separate sealing ring carrier can thus be dispensed with and the entire guide length of the piston is retained.
- the retaining ring has a bead which engages in a corresponding annular groove in the fastening section for the form-fitting connection
- the end face of the piston facing the pressure chamber side forms a flat, radially oriented contact surface for the seal.
- the flat contact surface except for a circumferential receptacle for fastening the seal brings about a desired, linear introduction of force in the case of a pressurized seal. This results in a disadvantageous positional shift the seal on the piston is effectively prevented
- the end section of the piston and the region of the retaining ring that grips the fastening section of the seal can furthermore have suitable shaped elements (eg one or more elevations or ring grooves) which engage in corresponding shaped elements of the fastening section of the seal, as a result of which a particularly secure seal locking takes place
- the end section of the piston is designed as a cylindrical shoulder, as a result of which radial forces that occur are absorbed in the seal
- the retaining ring can be produced as a metal part, for example as a deep-drawn part or as an extruded part as a machined aluminum ring or as an injection molded plastic part.
- the retaining ring can be connected to the piston by bordering, beading, rolling, snap connection, gluing or welding partially or circumferentially attached as a plastic part retaining rings can be ultrasonically welded to the piston
- a defined axial play is provided when the retaining ring is axially fixed to the piston, in order to reduce or avoid any suction problems or axial vibrations that occur during the piston movement
- the recesses can be dimensioned such that a defined axial Game of the retaining ring and thus the sealing ring against the piston can take place.
- a plastic retaining ring can have openings for receiving securing elements which engage in recesses on the piston. By dimensioning the recesses appropriately, an axial movement of the retaining ring and the seal can take place.
- FIG. 1 shows a sectional illustration of a first embodiment of the release system
- FIG. 3 shows a sectional illustration of a further embodiment of the release system
- FIGS. 4a, b sectional views of two embodiments of retaining rings and end portions of the piston and
- the disengaging system comprises a piston-cylinder unit 1 with an annular, cylindrical housing 2 and an inner guide tube 3 Between the housing 2 and the guide tube 3, the pressure chamber 4 connected to the hydraulic channel 26 is arranged, in which the axially displaceable piston 5 is located, on which the seal 6 is connected to the outside 8 of the guide tube 3 and to the retaining ring 11 on the inside 7 of the housing 2, sealing lips 9, 10 are received.
- the release system further comprises a spring 28 and a release bearing 27 connected to the piston 5 via the fastening element 25.
- a snap lug 22 of the fastening element 25 engages in a recess 20 of the piston 5
- FIG. 1 shows the piston 5 in an end position in which it is supported with a radial shoulder 32 on a cylindrical projection 33 of the housing 2
- first and second sections 14, 15 of the retaining ring 11 and the end section 12 of the piston 5 act to produce one positive locking of the fastening section 13 and thus the seal 6 together
- the retaining ring 11 has a snap lug 21 which engages in a corresponding recess 19 of the piston 5, whereby an axial movement within the recess 19 can take place via the axial play 29 Suction problems and axial vibrations can be reduced
- FIG. 3 shows a further embodiment of the push-out system, which differs from FIG. 1 in that the push-out bearing 27 is fastened to the piston 5 in an alternative manner.
- the fastening element 25 has an elongated snap lug 22 which engages in a corresponding recess 20 'in the piston 5 Furthermore, in the end position of the release bearing 27 and the piston 5 connected to it, a radially oriented leg 34 of the torsionally rigid inner bearing ring 35 is supported by the release bearing 27 on the projection 33 of the housing 2
- FIG. 4a, 4b show embodiments of the first and second sections 14, 15 as well as the snap noses 21 and the corresponding recesses 19.
- FIG. 4b shows a second section 15 of the end section 12 of the piston 5 with a bulge 18, so that a particularly secure receptacle the seal 6, not shown, is ensured by the undercut 18 and the opposing bead 16 of the first section 14 of the retaining ring 11.
- the connection and locking on the piston 5 can also take place via bordering and rolling, in addition to the snap connections shown (not pictured)
- FIG. 5a shows a retaining ring 11 made of plastic, which is connected to the piston 5 in an axially fixed manner, for example by gluing or welding.
- a retaining ring 11 of this type can have a recess 30 for receiving a (radially prestressed) securing element 24 radially aligned leg 31 of the securing element 24 in the Engage recess 19 of piston 5 ( Figure 5b).
- a defined axial play 29 can be realized by appropriate dimensioning of the recess 19.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Dichtung für ein hydraulisch betätigtes Ausrücksystem Seal for a hydraulically operated release system
Anwendungsgebiet der ErfindungField of application of the invention
Die Erfindung betrifft ein hydraulisch betätigtes Ausrückrücksystem, insbesondere für eine Schalttrennkupplung eines Kraftfahrzeugs, mit den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a hydraulically actuated release system, in particular for a shift clutch of a motor vehicle, with the features of the preamble of patent claim 1.
Hintergrund der ErfindungBackground of the Invention
In der DE 196 35 101 A1 ist ein Ausrücklager mit hydraulischer Betätigung für eine Membranfederkupplung für Kraftfahrzeuge beschrieben, bei dem eine Nutringdichtung über einem Verbindungsteil am Kolben angesetzt ist. Dabei ist das Verbindungsteil in der Nutringdichtung verankert oder eingelassen, wobei ein axial verlaufender Schenkel des Verbindungsteils in die äußere Umfangsfläche des Kolbens eingreift.DE 196 35 101 A1 describes a release bearing with hydraulic actuation for a diaphragm spring clutch for motor vehicles, in which a grooved ring seal is attached to the piston via a connecting part. The connecting part is anchored or embedded in the groove ring seal, an axially extending leg of the connecting part engaging in the outer peripheral surface of the piston.
Bei dem genannten Ausrücklager kann ein unerwünschtes Verklemmen oder Verkanten des Dichtungskörpers auftreten, wodurch die Führungsqualität des Kolbens beeinträchtigt wird.With the release bearing mentioned, undesired jamming or tilting of the sealing body can occur, as a result of which the guidance quality of the piston is impaired.
Zusammenfassung der ErfindungSummary of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein hydraulisch betätigtes Ausrücksystem anzubieten, bei dem ein Verklemmen oder Verkanten der am Kolben angebrachten Dichtung unterbunden wird.The invention has for its object to provide a hydraulically operated release system in which jamming or tilting of the seal attached to the piston is prevented.
Die Aufgabe wird durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 in Verbindung mit den Merkmalen des Oberbegriffs des Patentanspruchs 1 gelost Vorteilhafte Ausfuhrungsformen des Ausrucksystems werden durch die Unteranspruche 2 - 14 realisiertThe object is achieved by the features of the characterizing part of claim 1 in conjunction with the features of the preamble of Claim 1 solved. Advantageous embodiments of the printing system are realized by subclaims 2-14
Beim erfindungsgemaßen Ausrucksystem wird die Dichtung zur Arretierung am Kolben durch einen gemeinsamen Formschluß eines am Kolben befestigten Halterings sowie eines Endabschnitts des Kolbens lagestabil und betriebssicher aufgenommen Dabei weist die Dichtung in vorteilhafter Weise einen Befestigungsabschnitt im Fußbereich auf, der formschlussig einerseits durch den Haltering und andererseits durch einen entsprechend ge- formten Endabschnitt des Kolbens arretiert wirdIn the release system according to the invention, the seal for locking on the piston is received in a positionally stable and operationally reliable manner by means of a common positive locking of a retaining ring fastened to the piston and an end section of the piston a correspondingly shaped end section of the piston is locked
Durch den am Kolben angebrachten Haltering wird in Verbindung mit dem entsprechend ausgeformten Endabschnitt des Kolbens ein Formteil gebildet, welches formschlussig mit dem korrespondierend geformten Befesti- gungsabschnitt der Dichtung zur Befestigung der Dichtung am Kolben zusammenwirktA molded part is formed by the retaining ring attached to the piston in connection with the correspondingly shaped end section of the piston, which cooperates with the correspondingly shaped fastening section of the seal for fastening the seal to the piston
Beim erfindungsgemaßen Ausrucksystem kann somit auf einen separaten Dichtringtrager verzichtet werden und es bleibt die gesamte Fuhrungslange des Kolbens erhalten In einer vorteilhaften Ausfuhrungsform weist der Haltering eine Wulst auf, die zur formschlussigen Verbindung in eine korrespondierende Ringnut des Befestigungsabschnitts eingreiftIn the release system according to the invention, a separate sealing ring carrier can thus be dispensed with and the entire guide length of the piston is retained. In an advantageous embodiment, the retaining ring has a bead which engages in a corresponding annular groove in the fastening section for the form-fitting connection
Nach einer weiteren vorteilhaften Ausbildung der Erfindung bildet die zur Druckraumseite gerichtete Stirnseite des Kolbens eine ebene radial ausgerichtete Anlageflache für die Dichtung Die bis auf eine umlaufende Aufnahme zur Befestigung der Dichtung ebene Anlageflache bewirkt eine gewünschte, geradlinige Krafteinleitung bei einer druckbeaufschlagten Dichtung Dabei wird eine nachteilige Lageverschiebung der Dichtung am Kol- ben wirksam unterbunden Der Endabschnitt des Kolbens und der den Befestigungsabschnitt der Dichtung ergreifende Bereich des Halterings können ferner geeignete Formelemente (z B einzelne oder mehrere Erhöhungen oder Ringnuten) aufweisen, die in korrespondierende Formelemente des Befestigungsab- Schnitts der Dichtung eingreifen, wodurch eine besonders sichere Dichtungsarretierung stattfindetAccording to a further advantageous embodiment of the invention, the end face of the piston facing the pressure chamber side forms a flat, radially oriented contact surface for the seal. The flat contact surface except for a circumferential receptacle for fastening the seal brings about a desired, linear introduction of force in the case of a pressurized seal. This results in a disadvantageous positional shift the seal on the piston is effectively prevented The end section of the piston and the region of the retaining ring that grips the fastening section of the seal can furthermore have suitable shaped elements (eg one or more elevations or ring grooves) which engage in corresponding shaped elements of the fastening section of the seal, as a result of which a particularly secure seal locking takes place
Ferner können die formschlussigen Bereiche des Halterings und des Endabschnitts des Kolbens hinterschnittene Bereiche aufweisen, in welche ent- sprechende Vorsprunge des Befestigungsabschnitts der Dichtung lagesta- bilisierend eingreifenFurthermore, the form-fitting areas of the retaining ring and the end section of the piston can have undercut areas into which corresponding projections of the fastening section of the seal engage in a position-stabilizing manner
In einer weiteren Variante ist der Endabschnitt des Kolbens als zylindrischer Absatz ausgebildet, wodurch auftretende Radialkrafte in der Dichtung auf- genommen werdenIn a further variant, the end section of the piston is designed as a cylindrical shoulder, as a result of which radial forces that occur are absorbed in the seal
Der Haltering kann als Metallteil, z B als Tiefziehteil bzw als Fließpreßteil als spanend hergestellter Aluminiumring oder als spritzgegossenes Kunst- stoffteil hergestellt werden Eine Verbindung des Halterings mit dem Kolben kann durch Bordein, Sicken, Rollieren, Schnappverbindung, Verkleben oder Verschweißen erfolgen Diese Haltemittel können dabei partiell oder umlaufend angebracht sein Als Kunststoffteil ausgebildete Halteringe können mit dem Kolben ultraschallverschweißt werdenThe retaining ring can be produced as a metal part, for example as a deep-drawn part or as an extruded part as a machined aluminum ring or as an injection molded plastic part. The retaining ring can be connected to the piston by bordering, beading, rolling, snap connection, gluing or welding partially or circumferentially attached as a plastic part retaining rings can be ultrasonically welded to the piston
In einer weiteren vorteilhaften Ausfuhrungsform des Ausrucksystems ist bei der axialen Fixierung des Halterings am Kolben ein definiertes axiales Spiel vorgesehen, um bei der Kolbenbewegung auftretende etwaige Nachsaug- probleme oder Axialschwingungen zu reduzieren oder zu vermeidenIn a further advantageous embodiment of the push-out system, a defined axial play is provided when the retaining ring is axially fixed to the piston, in order to reduce or avoid any suction problems or axial vibrations that occur during the piston movement
Wenn der Haltering über eine Schnappverbindung mit in Ausnehmungen im Kolben eingreifende Schnappnasen mit dem Kolben verbunden ist, können die Ausnehmungen derart dimensioniert sein, daß ein definiertes axiales Spiel des Halterings und damit des Dichtrings gegenüber den Kolben stattfinden kann.If the retaining ring is connected to the piston via a snap connection with snap noses engaging in recesses in the piston, the recesses can be dimensioned such that a defined axial Game of the retaining ring and thus the sealing ring against the piston can take place.
Ein Kunststoffhaltering kann Öffnungen zur Aufnahme von Sicherungsele- menten aufweisen, die in Aussparungen am Kolben eingreifen. Durch entsprechende Dimensionierung der Aussparungen kann eine axiale Bewegung des Halterings und der Dichtung stattfinden.A plastic retaining ring can have openings for receiving securing elements which engage in recesses on the piston. By dimensioning the recesses appropriately, an axial movement of the retaining ring and the seal can take place.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Zur weiteren Erläuterung der Erfindung werden nachfolgende bevorzugte Ausführungsbeispiele beschrieben. Es zeigen:The following preferred exemplary embodiments are described to further explain the invention. Show it:
Figur 1 eine Schnittdarstellung einer ersten Ausführungsform des Ausrücksystems,FIG. 1 shows a sectional illustration of a first embodiment of the release system,
Figur 2 eine vergrößerte Darstellung aus Figur 1 ,FIG. 2 shows an enlarged illustration from FIG. 1,
Figur 3 eine Schnittdarstellung einer weiteren Ausführungs- form des Ausrücksystems,FIG. 3 shows a sectional illustration of a further embodiment of the release system,
Figuren 4a, b Schnittdarstellungen zweier Ausführungsformen von Halteringen und Endabschnitten des Kolbens undFigures 4a, b sectional views of two embodiments of retaining rings and end portions of the piston and
Figuren 5a, b Schnittdarstellungen von Ausführungsformen mit ausFigures 5a, b sectional views of embodiments with
Kunststoff bestehenden Halteringen.Plastic existing retaining rings.
Detaillierte Beschreibung der bevorzugten AusführungsbeispieleDetailed description of the preferred embodiments
Das Ausrücksystem nach Figur 1 umfaßt eine Kolben-Zylindereinheit 1 mit einem ringförmigen, zylindrischen Gehäuse 2 und einem inneren Führungs- rohr 3 Zwischen dem Gehäuse 2 und dem Fuhrungsrohr 3 ist die mit dem Hydrauhkkanal 26 verbundene Druckkammer 4 angeordnet, in der sich der axial verschiebbare Kolben 5 befindet, an dem über den Haltering 11 die Dichtung 6 mit an der Außenseite 8 des Fuhrungsrohrs 3 und an der Innen- seite 7 des Gehäuses 2 anliegenden Dichtlippen 9, 10 aufgenommen ist Ferner umfaßt das Ausrucksystem eine Feder 28 und ein über das Befestigungselement 25 mit dem Kolben 5 verbundenes Ausrucklager 27 Dabei greift eine Schnappnase 22 des Befestigungselements 25 in eine Ausnehmung 20 des Kolbens 5 Die Figur 1 zeigt den Kolben 5 in einer Endlage in der dieser mit einer radialen Schulter 32 an einem zylindrischen Vorsprung 33 des Gehäuses 2 abgestutzt istThe disengaging system according to FIG. 1 comprises a piston-cylinder unit 1 with an annular, cylindrical housing 2 and an inner guide tube 3 Between the housing 2 and the guide tube 3, the pressure chamber 4 connected to the hydraulic channel 26 is arranged, in which the axially displaceable piston 5 is located, on which the seal 6 is connected to the outside 8 of the guide tube 3 and to the retaining ring 11 on the inside 7 of the housing 2, sealing lips 9, 10 are received. The release system further comprises a spring 28 and a release bearing 27 connected to the piston 5 via the fastening element 25. A snap lug 22 of the fastening element 25 engages in a recess 20 of the piston 5 FIG. 1 shows the piston 5 in an end position in which it is supported with a radial shoulder 32 on a cylindrical projection 33 of the housing 2
Aus Figur 1 geht hervor, daß der Befestigungsabschnitt 13 der Dichtung 6 in einer gemeinsamen Formschlußwirkung des Halterings 11 und des End- abschnitts 12 des Kolbens 5 mit dem Kolben 5 verbunden istIt can be seen from FIG. 1 that the fastening section 13 of the seal 6 is connected to the piston 5 in a common positive locking action of the retaining ring 11 and the end section 12 of the piston 5
Im Gegensatz zum Stand der Technik wird auch der Endabschnitt 12 des Kolbens 5 zur formschlussigen Arretierung der Dichtung 6 am Kolben 5 verwendetIn contrast to the prior art, the end section 12 of the piston 5 is also used for the positive locking of the seal 6 on the piston 5
Der Bereich des Befestigungsabschnitts 13 der Dichtung 6 aus Figur 1 ist in Figur 2 vergrößert dargestellt Der Haltering 11 ist in Figur 2a mit einer Wulst 16 versehen, die in eine korrespondierende Ringnut 17 des Befestigungsabschnitts 13 eingreift, so daß in einem ersten Teilabschnitt 14 eine formschlussige Erfassung der Dichtung 6 durch den Haltering 11 erfolgt Zur Erzielung einer Gesamtformschlußwirkung stutzt sich der Befestigungsab- schπitt 13 der Dichtung 6 zusatzlich an dem als zylindrischen Absatz ausgebildeten zweiten Teilabschnitt 15 vom Endabschnitts 12 des Kolben 5 formschlussig abThe area of the fastening section 13 of the seal 6 from FIG. 1 is shown enlarged in FIG. 2. The retaining ring 11 is provided in FIG. 2a with a bead 16 which engages in a corresponding annular groove 17 in the fastening section 13, so that a positive fit in a first section 14 The seal 6 is gripped by the retaining ring 11. In order to achieve an overall positive locking effect, the fastening section 13 of the seal 6 is additionally supported on the second section 15, which is designed as a cylindrical shoulder, from the end section 12 of the piston 5 in a form-fitting manner
Insgesamt wirken die ersten und zweiten Teilabschnitte 14, 15 des Halterings 11 und des Endabschnitts 12 des Kolbens 5 zur Herstellung einer formschlussigen Erfassung des Befestigungsabschnitts 13 und damit der Dichtung 6 zusammen Der Haltering 11 besitzt eine Schnappnase 21 , die in eine entsprechende Ausnehmung 19 des Kolbens 5 eingreift, wobei eine axiale Bewegung innerhalb der Ausnehmung 19 über das Axialspiel 29 stattfinden kann Über das Axialspiel 29 können etwaige Nachsaugprobleme und Axialschwingungen reduziert werdenOverall, the first and second sections 14, 15 of the retaining ring 11 and the end section 12 of the piston 5 act to produce one positive locking of the fastening section 13 and thus the seal 6 together The retaining ring 11 has a snap lug 21 which engages in a corresponding recess 19 of the piston 5, whereby an axial movement within the recess 19 can take place via the axial play 29 Suction problems and axial vibrations can be reduced
Aus Figur 3 geht eine weitere Ausfuhrungsform des Ausrucksystems hervor, die sich gegenüber der Figur 1 durch eine alternative Befestigung des Aus- rucklagers 27 am Kolben 5 unterscheidet Das Befestigungselement 25 besitzt eine verlängerte Schnappnase 22, die in eine korrespondierende Ausnehmung 20' des Kolbens 5 eingreift Weiterhin stutzt sich in der Endlage des Ausrucklagers 27 und des damit verbundenen Kolbens 5 ein radial ausgerichteter Schenkel 34 des drehstarr angeordneten inneren Lagerrings 35 vom Ausrucklager 27 am Vorsprung 33 des Gehäuses 2 abFIG. 3 shows a further embodiment of the push-out system, which differs from FIG. 1 in that the push-out bearing 27 is fastened to the piston 5 in an alternative manner. The fastening element 25 has an elongated snap lug 22 which engages in a corresponding recess 20 'in the piston 5 Furthermore, in the end position of the release bearing 27 and the piston 5 connected to it, a radially oriented leg 34 of the torsionally rigid inner bearing ring 35 is supported by the release bearing 27 on the projection 33 of the housing 2
In den Figuren 4a, 4b sind Ausfuhrungsformen der ersten und zweiten Teilabschnitte 14, 15 sowie der Schnappnasen 21 und der korrespondierenden Ausnehmungen 19 gezeigt Figur 4b zeigt einen zweiten Teilabschnitt 15 des Endabschnitts 12 des Kolbens 5 mit einer Ausbuchtung 18, so daß eine besondere sichere Aufnahme der nicht abgebildeten Dichtung 6 durch die Hinterschneidung 18 und die gegenüberliegende Wulst 16 des ersten Teilabschnitts 14 des Halterings 11 gewahrleistet ist Bei einem als Metallteil ausgebildeten Haltering 11 kann die Verbindung und Arretierung am Kolben 5 neben den gezeigten Schnappverbindungen auch über Bordein und Rollieren erfolgen (nicht abgebildet)4a, 4b show embodiments of the first and second sections 14, 15 as well as the snap noses 21 and the corresponding recesses 19. FIG. 4b shows a second section 15 of the end section 12 of the piston 5 with a bulge 18, so that a particularly secure receptacle the seal 6, not shown, is ensured by the undercut 18 and the opposing bead 16 of the first section 14 of the retaining ring 11. In the case of a retaining ring 11 designed as a metal part, the connection and locking on the piston 5 can also take place via bordering and rolling, in addition to the snap connections shown (not pictured)
Figur 5a zeigt einen Haltering 11 aus Kunststoff, der z B über Verklebung oder Verschweißung axial fixiert mit dem Kolben 5 verbunden ist Ein derar- tiger Haltering 11 kann eine Ausnehmung 30 zur Aufnahme eines (radial vorgespannten) Sicherungelements 24 besitzen Durch die Öffnung 23 kann ein radial ausgerichteter Schenkel 31 des Sicherungelements 24 in die Ausnehmung 19 des Kolbens 5 eingreifen (Figur 5b). Durch entsprechende Dimensionierung der Ausnehmung 19 kann ein definiertes Axiaspiel 29 realisiert werden. FIG. 5a shows a retaining ring 11 made of plastic, which is connected to the piston 5 in an axially fixed manner, for example by gluing or welding. A retaining ring 11 of this type can have a recess 30 for receiving a (radially prestressed) securing element 24 radially aligned leg 31 of the securing element 24 in the Engage recess 19 of piston 5 (Figure 5b). A defined axial play 29 can be realized by appropriate dimensioning of the recess 19.
BezugszahlenlisteLIST OF REFERENCE NUMBERS
I Kolben-Zylindereinheit 19 Ausnehmung 5 2 Gehäuse 20 AusnehmungI piston-cylinder unit 19 recess 5 2 housing 20 recess
3 Führungsrohr 21 Schnappnase3 guide tube 21 snap nose
4 Druckkammer 22 Schnappnase4 pressure chamber 22 snap nose
5 Kolben 23 Öffnung5 pistons 23 opening
6 Dichtung 24 Sicherungselement 10 7 Innenseite 25 Befestigungselement6 Seal 24 securing element 10 7 inside 25 fastening element
8 Außenseite 26 Hydraulikkanal8 Outside 26 hydraulic channel
9 Dichtlippe 27 Ausrücklager9 sealing lip 27 release bearing
10 Dichtlippe 28 Feder10 sealing lip 28 spring
I I Haltering 29 AxialspielI I retaining ring 29 axial play
15 12 Endabschnitt 30 Ausnehmung15 12 end section 30 recess
13 Befestigungsabschnitt 31 Schenkel13 fastening section 31 leg
14 erster Teilabschnitt 32 Schulter14 first section 32 shoulder
15 zweiter Teilabschnitt 33 Vorsprung15 second section 33 projection
16 Wulst 34 Schenkel 0 17 Ringnut 35 Lagerring16 bead 34 leg 0 17 ring groove 35 bearing ring
18 Hinterschneidung 18 undercut
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9912400-9A BR9912400A (en) | 1998-07-24 | 1999-06-15 | Sealing for a hydraulically driven release system |
| KR1020017000900A KR20010079545A (en) | 1998-07-24 | 1999-06-15 | Seal for the hydraulically actuated release system |
| DE19981436T DE19981436D2 (en) | 1998-07-24 | 1999-06-15 | Seal for a hydraulically operated release system |
| US09/768,677 US6328148B2 (en) | 1998-07-24 | 2001-01-24 | Hydraulic clutch release mechanism |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833342 | 1998-07-24 | ||
| DE19833342.0 | 1998-07-24 | ||
| DE19835707A DE19835707A1 (en) | 1998-07-24 | 1998-08-07 | Automotive hydraulic clutch seal arrangement prevents piston jamming or skewed presentation |
| DE19835707.9 | 1998-08-07 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/768,677 Continuation US6328148B2 (en) | 1998-07-24 | 2001-01-24 | Hydraulic clutch release mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000006921A1 true WO2000006921A1 (en) | 2000-02-10 |
Family
ID=26047672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/004113 Ceased WO2000006921A1 (en) | 1998-07-24 | 1999-06-15 | Seal for a hydraulically actuated release system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6328148B2 (en) |
| BR (1) | BR9912400A (en) |
| DE (1) | DE19981436D2 (en) |
| WO (1) | WO2000006921A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019580A1 (en) | 2012-08-02 | 2014-02-06 | Schaeffler Technologies AG & Co. KG | Slave cylinder for a hydraulic disengagement arrangement for operating a clutch |
| DE102017110328A1 (en) * | 2017-05-12 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Piston assembly for a slave cylinder with encompassing seal and sleeve and assembly method for piston assembly |
| AT524593A1 (en) * | 2020-12-23 | 2022-07-15 | Avl List Gmbh | fluid piston device |
| DE102008057957C5 (en) | 2007-01-15 | 2022-07-28 | Schaeffler Technologies AG & Co. KG | slave cylinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2730532B1 (en) * | 1995-02-09 | 1997-04-04 | Valeo | HYDRAULICALLY CONTROLLED CLUTCH STOPPER FOR DIAPHRAGM CLUTCH, ESPECIALLY FOR MOTOR VEHICLES WITH A GUIDE SLEEVE |
| GB2344393B (en) * | 1998-10-15 | 2003-07-09 | Luk Lamellen & Kupplungsbau | Hydraulic release system |
| DE10228051B4 (en) * | 2001-06-28 | 2013-12-24 | Schaeffler Technologies AG & Co. KG | Hydraulically actuated release system for automotive friction clutch |
| DE10314864B3 (en) * | 2003-04-02 | 2004-10-28 | Fte Automotive Gmbh & Co. Kg | Central release for hydraulic clutch actuation |
| FR2861459B1 (en) * | 2003-10-22 | 2006-02-24 | Skf Ab | ABSOLUTE MULTITOUR HIGH RESOLUTION ROTATION MEASUREMENT SYSTEM AND BEARING EQUIPPED WITH SUCH A SYSTEM. |
| FR2872558B1 (en) * | 2004-07-02 | 2006-09-29 | Skf Ab | CLUTCH FASTER AND METHOD OF MANUFACTURE |
| FR2873182B1 (en) * | 2004-07-16 | 2007-12-28 | Freudenberg Soc Par Actions Si | SEALING PIECE HAVING INTEGRATED CONNECTING MEANS AND MECHANICAL ASSEMBLY IMPLEMENTING SUCH A SEALING PART |
| US20090180721A1 (en) * | 2005-02-15 | 2009-07-16 | Stellario Barbera | Encoding Bearing Device and Rotating Machine |
| FR2902699B1 (en) * | 2006-06-26 | 2010-10-22 | Skf Ab | SUSPENSION STOP DEVICE AND FORCE LEG. |
| FR2906587B1 (en) | 2006-10-03 | 2009-07-10 | Skf Ab | TENDERING ROLLER DEVICE. |
| FR2910129B1 (en) * | 2006-12-15 | 2009-07-10 | Skf Ab | INSTRUMENT BEARING BEARING DEVICE |
| FR2913081B1 (en) * | 2007-02-27 | 2009-05-15 | Skf Ab | DEBRAYABLE PULLEY DEVICE |
| CN102046998B (en) * | 2008-05-27 | 2013-07-03 | 株式会社捷太格特 | Clutch release bearing |
| US8636125B2 (en) * | 2009-08-26 | 2014-01-28 | GM Global Technology Operations LLC | Actuation device having wiper seals for a dual clutch transmission |
| US8485333B2 (en) * | 2009-08-26 | 2013-07-16 | GM Global Technology Operations LLC | Actuation device for a dual clutch transmission |
| DE112011102177B4 (en) * | 2010-06-29 | 2020-06-18 | Schaeffler Technologies AG & Co. KG | Piston-cylinder arrangement with a seal attached to the piston |
| WO2012013179A1 (en) * | 2010-07-29 | 2012-02-02 | Schaeffler Technologies Gmbh & Co. Kg | Release unit for a dual clutch |
| DE112012003236A5 (en) * | 2011-08-05 | 2014-04-30 | Schaeffler Technologies Gmbh & Co. Kg | slave cylinder |
| DE112013003578A5 (en) * | 2012-07-17 | 2015-03-26 | Schaeffler Technologies Gmbh & Co. Kg | Piston-cylinder arrangement, in particular for a clutch actuation system in a motor vehicle |
| DE112013003827A5 (en) * | 2012-08-02 | 2015-04-30 | Schaeffler Technologies AG & Co. KG | Piston-cylinder unit of a hydraulic system |
| DE112015000892T5 (en) * | 2014-02-20 | 2016-11-17 | Schaeffler Technologies AG & Co. KG | Concentric slave cylinder containing an overrunning clutch |
| DE102018111760B4 (en) * | 2018-05-16 | 2020-01-16 | Schaeffler Technologies AG & Co. KG | Slave cylinder with split seal ring carrier |
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| DE19635101A1 (en) | 1995-09-14 | 1997-03-20 | Valeo | Hydraulic release bearing for diaphragm spring clutch for motor vehicle |
| FR2745617A1 (en) * | 1996-02-29 | 1997-09-05 | Valeo | Clutch release for motor vehicle diaphragm clutch |
| DE19609472A1 (en) * | 1996-03-04 | 1997-09-11 | Schaeffler Waelzlager Kg | Ring piston seal for a hydraulically actuated release system |
| FR2757590A1 (en) * | 1996-12-23 | 1998-06-26 | Valeo | Hydraulic clutch control receiver, especially for motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3990401C2 (en) * | 1988-04-26 | 2001-03-22 | Exedy Corp | Release mechanism for a clutch |
| US5135092A (en) | 1990-07-07 | 1992-08-04 | Luk Lamellen Und Kupplungsbau Gmbh | Apparatus for transmitting torque |
| DE4129370C2 (en) * | 1991-09-04 | 2001-11-22 | Mannesmann Sachs Ag | Hydraulically actuated releaser with support ring and support shoulder |
| FR2730534B1 (en) * | 1995-02-09 | 1997-04-04 | Valeo | HYDRAULICALLY CONTROLLED CLUTCH STOPPER FOR A MOTOR VEHICLE DIAPHRAGM CLUTCH |
| FR2738886B1 (en) * | 1995-09-14 | 1997-10-24 | Valeo | HYDRAULICALLY CONTROLLED RELEASE DEVICE FOR CLUTCH, PARTICULARLY FOR MOTOR VEHICLES |
-
1999
- 1999-06-15 WO PCT/EP1999/004113 patent/WO2000006921A1/en not_active Ceased
- 1999-06-15 BR BR9912400-9A patent/BR9912400A/en active Search and Examination
- 1999-06-15 DE DE19981436T patent/DE19981436D2/en not_active Expired - Fee Related
-
2001
- 2001-01-24 US US09/768,677 patent/US6328148B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635101A1 (en) | 1995-09-14 | 1997-03-20 | Valeo | Hydraulic release bearing for diaphragm spring clutch for motor vehicle |
| FR2745617A1 (en) * | 1996-02-29 | 1997-09-05 | Valeo | Clutch release for motor vehicle diaphragm clutch |
| DE19609472A1 (en) * | 1996-03-04 | 1997-09-11 | Schaeffler Waelzlager Kg | Ring piston seal for a hydraulically actuated release system |
| FR2757590A1 (en) * | 1996-12-23 | 1998-06-26 | Valeo | Hydraulic clutch control receiver, especially for motor vehicle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008057957C5 (en) | 2007-01-15 | 2022-07-28 | Schaeffler Technologies AG & Co. KG | slave cylinder |
| WO2014019580A1 (en) | 2012-08-02 | 2014-02-06 | Schaeffler Technologies AG & Co. KG | Slave cylinder for a hydraulic disengagement arrangement for operating a clutch |
| DE102013214370A1 (en) | 2012-08-02 | 2014-02-06 | Schaeffler Technologies AG & Co. KG | Slave cylinder for a hydraulic disengagement assembly for actuating a clutch |
| DE102017110328A1 (en) * | 2017-05-12 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Piston assembly for a slave cylinder with encompassing seal and sleeve and assembly method for piston assembly |
| DE102017110328B4 (en) | 2017-05-12 | 2022-10-06 | Schaeffler Technologies AG & Co. KG | Piston assembly for a slave cylinder with wrap around seal and sleeve and method of assembly for piston assembly |
| AT524593A1 (en) * | 2020-12-23 | 2022-07-15 | Avl List Gmbh | fluid piston device |
| AT524593B1 (en) * | 2020-12-23 | 2022-08-15 | Avl List Gmbh | fluid piston device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20010004038A1 (en) | 2001-06-21 |
| BR9912400A (en) | 2001-05-02 |
| DE19981436D2 (en) | 2001-07-12 |
| US6328148B2 (en) | 2001-12-11 |
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